na INLIS000000000000657 0010-0124000343 RAINFED lowland rice : advances in nutrient management research ed. J.K. Ladha [et al.] Manila, Philippines International Rice Research Institute 1998 vi, 304 : ills. ; 23 cm. 971-22-0117-1 RICE ORYZA SATIVA RAINFED FARMING LOWLAND NUTRIENTS MANAGEMENT RESEARCH IRRI. 011/2000